The sum of n terms of an ap is 7n^2+9n. find the ap.find 18th term
Answers
Answered by
4
The 18th term is 254. Steps are in the attachment. Hope this is helpful.
Attachments:
![](https://hi-static.z-dn.net/files/df0/57eff3311453d0c27e3d845995e3c615.jpg)
Similar questions